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  • PHYS 221B

    • Relativistic Quantum Field Theory . PHYS 221B

    Introduction to the theory of Lorentz covariant quantized fields. Global and local conservation laws. Path integral formulation. Applications to quantum electrodynamics, quantum chromodynamics, and electroweak interactions. Other possible topics include grand unification, the renormalization group, anomolies, current algebra and supersymmetry.

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    Prerequisites: Physics 221A.

    4

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    Optional

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    1, 2, 3

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    None

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    Letters and science

    College
    Unlocks PHYS 230A PHYS 221C PHYS 229B PHYS 230B PHYS 229A
    Instructors
    GIDDINGS S B
    Steve Giddings
    3.5
    12 reviews
    Predicted Grading Distribution
    AI predicted, based on past grading trends of the course and instructor, class info, and 127 other factors
    Lecture
    ELLSN2626
    T R
    11:00 AM - 12:15 PM
    0 / 50
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    Enrollment Trends
    Past Enrollment Trends (2)
    Winter 2025 . Berenstein D
    PHELP2524
    T R
    11:00 AM - 12:15 PM
    Winter 2026 . Berenstein D
    PHELP2524
    T R
    11:00 AM - 12:15 PM
    Grading Trends (14)
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    PHYS 221B Giddings S B Winter 2020 Total: 16
    PHYS 221B Giddings S B Winter 2018 Total: 7
    Rate My Professors
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    12
    3.5
    PHYS131 . Giddings S B 5 Years Ago

    He is passionate about the materials and gives a clear detailed lecture. The content is challenging by its nature, but the course is very fruitful.

    0 helpful 0 unhelpful
    PHYS221A . Giddings S B 5 Years Ago

    Steve is a leading physicist in high energy physics, and his QFT course is a must take. Ideas are clearly laid out and his lectures are very well organized. Can't recommend him more.

    0 helpful 0 unhelpful
    PHYS221A . Giddings S B 5 Years Ago

    Steves QFT is great, rigorous, smooth transition from QM. His problem sets stretches your mind and gives you a taste of common techniques used in frontier researches such as random matrix theory and string theory. Very inspirational. He is also a great explainer. Go to his office hour and chat with him!

    1 helpful 0 unhelpful
    PHYS1 . Giddings S B 9 Years Ago

    Professor Giddings can arrange amazing lectures. His class is absolutely interesting. And also a fair grader

    0 helpful 0 unhelpful
    PHYS221A . Giddings S B 10 Years Ago

    The highlight of this class was the teaching. Giddings took a tough subject and clearly laid out the logic, making it easy to understand. Attending lecture was necessary because he didn't really follow the textbook but also didn't post notes.

    1 helpful 0 unhelpful
    PHYS221A . Giddings S B 10 Years Ago

    Lectures were laid out clearly, and Steve was very responsive to questions. Homeworks were somewhat time-intensive, but informative. Wasn't very helpful on homework questions during office hours. Not very personable, but always nice, and that's all I can ask for from a physicist.

    1 helpful 0 unhelpful
    See all 12 reviews
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